Economics 2005 Neco Past Questions and Answers

Question 16 :

• NECO 2005

If the standard deviation of a set of numbers is 3.6, what is the variance?

A. 12.49
B. 12.69
C. 12.9
D. 12.96
E. 12.98

Question 17 :

• NECO 2005

The recent revolution of Cassava from ordinary food crop to export crop will lead to ____________

A. Decrease in price of cassava flour
B. Decrease In production of cassava
C. Decrease In production of local starch
D. Increase In production of other crops
E. Increase in the prices of cassava products

Question 18 :

• NECO 2005

The formular (N + 1)/2 is used to determine the ____________

A. Mean
B. Median
C. Mode
D. Standard deviation
E. Mean deviation

Question 19 :

• NECO 2005

When the total product starts falling, then the marginal product is ____________

A. Constant
B. Increasing
C. Maximum
D. Negative
E. Zero

Question 20 :

• NECO 2005

The variance of a given set of numbers is defined as the ____________

A. Absolute value of the standard deviation
B. Square of the standard deviation
C. Square root of the standard deviation
D. Square of the mean deviation
E. Square root of the mean deviation